CVE-2026-34384 Details
Description
Admidio is an open-source user management solution. Prior to version 5.0.8, the create_user, assign_member, and assign_user action modes in modules/registration.php approve pending user registrations via GET request without validating a CSRF token. Unlike the delete_user mode in the same file (which correctly validates the token), these three approval actions read their parameters from $_GET and perform irreversible state changes without any protection. An attacker who has submitted a pending registration can extract their own user UUID from the registration confirmation email URL, then trick any user with the rol_approve_users right into visiting a crafted URL that automatically approves the registration. This bypasses the manual registration approval workflow entirely. This issue has been patched in version 5.0.8.
A vulnerability exists in Admidio versions prior to 5.0.8, where the user registration approval actions in the registration module lack proper Cross-Site Request Forgery (CSRF) protection. The 'create_user', 'assign_member', and 'assign_user' modes approve registrations via GET requests without validating CSRF tokens. This oversight allows an attacker to exploit the system by tricking an administrator into approving their registration, bypassing the manual approval process. The vulnerability arises because these approval actions read parameters from the GET request and make irreversible changes without any safeguards, unlike the 'delete_user' mode, which correctly validates the CSRF token.
Users can update to Admidio version 5.0.8 or later, where this vulnerability has been patched. For versions prior to 5.0.8, it is recommended to manually validate CSRF tokens in the registration approval actions.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Admidio/admidio/security/advisories/GHSA-ph84-r98x-2j22 | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/Admidio/admidio/commit/707171c188b3e8f36007fc3f2bccbfac896ed019 | [email protected] | Patch |
| https://github.com/Admidio/admidio/security/advisories/GHSA-ph84-r98x-2j22 | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| admidio admidio | < 5.0.8 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 1, 2026 | Initial Analysis | [email protected] |
| Apr 1, 2026 | CVE Modified | CISA-ADP |
| Mar 31, 2026 | New CVE Received | [email protected] |